DETERMINATION OF LEAD FROM GOLD ORE USING PROTON INDUCED X-RAY EMISSION TECHNIQUE. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 5, n. 1, p. 490–494, 2021. DOI: 10.33003/fjs-2021-0501-594. Disponível em: http://162.254.38.185/index.php/fjs/article/view/594. Acesso em: 17 sep. 2025.